7 Wā
223 Episode
3-2-1 Contact - Season 7 Episode 17
There is surprising strength in a tube because it is hollow. We see how tubes are used in bicycles, organs, and roofs.
- Tau: 1988
- Whenua: United States of America
- Momo:
- Studio: PBS
- Kupu matua:
- Kaiwhakahaere:
- Maka: